1. What don we know?
2. The Bertrand Paradox(1883)
3. Cournot compretiton (1838)
4. Empirical evidence of Structure-Conduct-Performance
   1. Mark-ups
   2. Measures of Market concentration
   3. Herfindahl & Lerner Index
   4. Empirical evidence by Bain (1951)
5. Conjectural variations
   1. The cournot case
   2. Herfindahl & Lerner Index & conjectural variations
   3. Cowling and Waterson (1977)
   4. Empirical evidence: Schmalensee and Bresnahan
6. Strategic compliments and strategic substitutes
   1. The cournot example
   2. A reduction in MC
   3. Bulow Geanakoplos Klemperer (1985)
   4. Strategic compliments
   5. Strategic substitutes